Verify your email to receive alerts and history exports.
Favorites
Loading…
Notifications
No active alerts
Set an alert on any lake to get notified when levels change.
The Nibi Dispatch
Water moves. Stay ahead of it.
One email a week — freshet watches, record levels, new regions. Nothing else.
Map

Sign in

Alerts & notifications Get notified when your favorite lakes go outside normal range
Loading…
Your account Email, subscription, and account actions
Loading…
DEV ZONE

Nibi Metrics

Real-time water levels, forecasts, and alerts for lakes and rivers across Canada and the US. Built on official government data.

Nibi Metrics turns raw gauge readings from official hydrometric networks into something a person standing on a dock can actually use: is the water high or low for today, which way is it moving, and how unusual is this? This page explains where every number on the platform comes from and what we do to it along the way.

Water Stories

The flood of record that was overtaken

For five years, spring 2019 was the mark every Lake Muskoka decision answered to. In April 2026 the lake went two centimeters higher - and the official books have not caught up yet.

Why the Assiniboine floods every spring

Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.

How snowpack becomes summer water

The science of snow water equivalent and why it drives the season ahead.

Reading a staff gauge like a hydrologist

What the numbers on the measuring stick actually tell you.

Flash Flood Alley: how Texas rivers rise in hours

Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.

What a "100-year flood" actually means

One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.

Manowaiopae Stream near Spencer Road Water Level

Live river level, flow, historical records and forecast for Manowaiopae Stream near Spencer Road in HI, United States, built from official government gauge data.

About Manowaiopae Stream near Spencer Road

Manowaiopae Stream - A dynamic, rainfall-driven waterway.

Manowaiopae Stream near Spencer Road is a vital artery in the lush hydrology of Hawaii. This small river flows through a steep catchment that spans roughly 1.4 square miles, responding rapidly to periods of rainfall. The tropical climate creates a unique scenario where flash floods can emerge in a matter of minutes. Surrounding streams like Alakahi Stream, Hakalau Stream, and Honolii Stream also share this rainfall-driven character, contributing to the intricate web of waterways on the island.

Why the data matters here

Today's reading from the US Geological Survey (USGS) provides a snapshot of the current conditions at Manowaiopae Stream, which can be greatly influenced by local weather patterns. Knowing how the stream's level compares to historical medians for this date—an important benchmark—allows local anglers and residents to anticipate changing conditions, mitigating risks associated with swift fluctuations in water levels that can occur due to heavy rainfall.

By understanding the current water level in relation to the median for this day over the past eight years, users can gain insights into the stream's behavior. This vital data helps navigate the unique challenges of flash flooding while also appreciating the stream's essential role in the local ecosystem and water management.

How this page is built

Readings come from official government gauges and are rolled into daily records: the daily mean, high and low for every day on record. Each calendar day gets its own baseline from the full history, so the level you see is compared against what this specific date usually looks like rather than an annual average.

How Nibi Metrics works · Water stories